建国60多年以来，我国民族团结之花开得异常鲜艳。这主要得益于实行了（   ）

用镊子从洋葱鳞片叶内撕取一小块透明薄膜制成玻片标本，来进行临时观察，这种玻片标本称作（    ）

根据对话内容，填写适当单词补全对话
A: ____  me, could you____ 　me the way to the nearest book shop, please?
B:Certainly. Go along this road and turn right____ the traffic ____ 　.
Then walk on ____ you reach the second crossing. And then turn left. You will see a bridge. Go across the bridge. You will find the shop ____ the right. It's ____ 　the post office ____ 　the fruit shop. You can't ____ 　it.
A:Thank you very much.
B:You're　____ 　.

Taste the lemon. It's _________.